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Taschenbuch. Zustand: Neu. Neuware - The rapid development of powerful pulsed lasers is at the origin of a conside rable interest in studying the response of an atom, a molecule (or a solid) to a strong electromagnetic field. It is now possible to produce at the laboratory scale, ultra-short 13 pulses with a duration of 100 femt…oseconds (10- second) and a power of the order 12 of 1 terawatt (10 Watt). Under these conditions, very high peak intensities may be obtained and electric fields exceeding typical electron binding fields in atoms are generated. The interaction of an atom or a molecule with such electromagnetic fields has a highly non-linear character which leads to unexpected phenomena. Amongst them, - above-threshold ionization (ATI) i.e. the absorption of additional photons in excess of the minimal number necessary to overcome the ionization potential and its molecular counterpart, above-threshold dissociation (ATD); - generation of very high harmonics of the driving field; - stabilization of one-electron systems in strong fields. These processes were the main topics of two international meetings which were held in 1989 and 1991 in the United States under the common name SILAP (Super-Intense Laser-Atom Physics).
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Taschenbuch. Zustand: Neu. Neuware - This volume is the second in 'The Downstate Series of Research in Psychiatry.' It is aseries devoted to the presentation of sig nificant research with relevance for both clinicians and researchers in the multiple subfields of psychiatry. This book focuses on the interactions between psychic p…henomena and physical processes as studied by evoked brain potentials. It presents material concerned with physiological and psychological unifying processes, as weIl as research concerning technology and methods of obtaining meaningful measurements. As such it is representative of biological psychiatry at its best. Thus, it represents another step in new directions in psychiatric research but not an unanticipated direction. Scientific investigation into the human psyche took an unex pected turn when Sigmund Freud in the last part of the 19th Century turned his attention from neurological concerns to those of psychol ogy. His first attempts at explanations as noted in the 'project,' included a heavy emphasis on the biological substrate of behavior.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -There is a unique nutritional commonality developing in research relating to coronary heart disease and cancer. The primary aim of this conference was to provide a forum for the leading researchers, clinicians, educators and administr…ators in these two fields to present a program on heart disease and cancer which included a) the major historical milestones, b) the present areas of greatest interest in research and therapy, c) the latest nutritional, molecular, and biotechnological advances, and d) a perspective on the most promising areas for future research and therapy. Scientists have long contended that research marches on the feet of methodology. Thus there are numerous examples of research fields opening secondary to methodological advances. Some examples are: 1) thin layer and gas-liquid chromatography which, along with high pressure liquid chromatography have broadened the line of advances in lipid research and 2) peR and the resultant impact on molecular biological approaches to several fields of science. The organizers of this conference thought the time was propitious for bringing together knowledge on newer aspects of molecular biological research with current advances in the two major areas of degenerative disease--coronary heart disease and cancer. Our knowledge of these 'killer diseases' has expanded greatly in the past few years and the advance has been catalyzed by use of an array of molecular biological techniques. Thanks to these, medical thinking in these areas is changing from considerations of treatment to strategies for prevention. 267 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The successful early adaptations of man involve a complex interplay of biological and cultural factors. There is a rapidly growing number of paleontologists and paleoanthropologists who are concerned with hominid foraging and the evol…ution of hunting. New techniques of paleoanthropology and taphonomy, and new information on human remains are added to the traditional approaches to the study of past human hunting and other foraging behavior. There is also a resurgence of interest in the early peopling of the New World. The present book is the result of the Ninth Annual Spring Systematics 10, 1986, in the Symposium, on the Evolution of Human Hunting, held on May Field Museum of Natural History in Chicago. We are grateful to the NSF (grant no. BNS 8519960) for partial financial support in arranging the symposium. In preparation of this volume we have received assistance from many people, particularly the reviewers of individual chapters; it is impossible to name them all. We must however single out Drs. Richard G. Klein and Glen H. Cole for their encouragement at various stages of preparation of the symposium and this volume, and for being a help to the anthropological knowledge. Zbigniew Jastrzebski assisted with the figures and Paul K. Johnson diligently typed the camera-ready copy, and patiently coordinated the endless book-making chores. 476 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the time-worn traditions of the transportation industry, ship pers and carriers regard one another as enemies. There is, to be sure, a certain degree of validity to such a viewpoint. An element of conflict will naturally be present… in any vendor-purchaser relationship. The two, after all, are seeking distinctly different things from that relationship; and to a con siderable extent each party's success in realizing its own goals must be achieved at the expense of the other. At the same time, however, viewing that relationship as strictly zero-sum-a gain by one side always resulting in an equal and offsetting loss by the other-is a gross misconception. It overlooks the key reality that, no matter which party comes closest to its own objectives, the relationship, and the business transactions that flow from it, must ultimately benefit both. Without that level of mutual benefit the relationship will simply not exist (or will soon founder if it somehow does come into being); for it is only the self-interest of the two parties that impels them to establish and continue that relationship at all. In transportation, however, this element of mutuality-the attitude that the parties share a common interest in nurturing their relationship-is often forgotten. Instead of working to gether as, fundamentally, partners in a business transaction from which both expect to derive gains, they dedicate the bulk of their energies to fighting, rather than cooperating, with one another. 284 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In the writing of prefaces for works of this sort, most editors report being faced with similar challenges and have much in common in relating how these challenges are met. They acknowledge that their paramount ob jective is to provid…e more than an overview of topics but rather to offer selective critical reviews that will serve to advance theory and research in the particular area reviewed. The question of the appropriate audience to be addressed is usually answered by directing material to a potential audience of social scientists, graduate students, and, occasionally, ad vanced undergraduate students. Editors who are confronted with the problem of structuring their material often explore various means by which their social science discipline might be subdivided, then generally conclude that no particular classification strategy is superior. In elabo rating on the process by which the enterprise was initiated, editors typ ically resort to a panel of luminaries, who provide independent support for the idea and then offer both suggestions for topics and the authors who will write them. Editors usually concede that chapter topics and content do not reflect their original conception but are a compromise between their wishes and the authors' expertise and capabilities. Editors report that inevitable delays occur, authors drop out of projects and are replaced, and new topics are introduced. Finally, editors frequently con fess that the final product is incomplete, with gaps occurring because of failed commitments by authors or because authors could not be secured to write certain chapters. 396 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The emergence of reaction injection molding (RIM) has been fol lowed by the industry with mounting interest. RIM technology has brought to polymer processing a new flexibility and savings in both energy and capital investment. The new… developments and the number of engineers and scientists working in RIM is growing at so fast a rate that there is need for sharing information on progress in this area. This book is based on papers presented at the International Symposium on Reaction Injection Molding which was held in 1981 in Atlanta, Georgia, and was sponsored by the American Chemical Society, Division of Organic Coatings and Plastics Chemistry. The book is divided into four parts covering different areas of RIM development. The first part is devoted to the future trends of RIM develop ment in the United States and Japan. The structure-properties relationship and effects of annealing on properties of RIM elastomers are covered in the second part. New non-urethane polymers such as polyamides, polyisocyanurates and polystyrene suitable for RIM processing are discussed in the third part. In the last part the engineering and technological aspects of RIM, such as glass reinforcement, mixing, flow and moldability are covered in detail. Finally I would like to thank Mrs. Iris Glebe for typing this book and for help with editing, and K. Zielinski for his assistance v vi PREFACE in reviewing and, when necessary, correcting some of the papers. Thanks is also due to the editors of Plenum for their patience and helpfulness. 316 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The NATO - EMBO Advanced Study Institute - Lecture Course on 'CHROMOSOME DAMAGE AND REPAIR' was held at God Ct. ysund Fjord Hotel outside Bergen, Norway. from Msr 27th to June 5th, 1980. This book represents the proceedings of this me…eting. In addition to the for mal lectures, a number of short contributions presented in the dis cussion sessions following the lectures are also included. The papers have been divided into different groups according to topic, essentially in the same way as they were presented during the meet ing. The editors have m. ade' few alterations in the manuscript sub mitted and these were mostly confined to typing style and correc tion ot typographical errors. We would like to express our appreciation to all the persons who helped in making this meeting possible. Special thanks are due to Tomas Lindahl, Alan R. Lehmann and Erik Boye, who served in the advisory program committee. We would also like to thank our Danish friends and colleagues and others who provided invaluable assistance in an emergency situation. The editors are also grateful for the financial support provided by a number of organizations and institu tions. First and foremost of these were the NATO Scientific Affairs Division and the European Molecular Biology Organization. 640 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This anthology includes articles on experimental studies of the interaction of high-power electromag netic waves with collisionless plasmas and with electrons. The nonlinear interaction of waves with plasmas has been investigated both… under free space conditions and in waveguides. A study of secondary-emission dis charges was made in order to ascertain their possible effect on measurements in waveguides. The results presented here on the interaction of high-power waves with plasmas and electrons are of interest to a wide range of physicists and engineers concerned with various questions on the interaction of electromagnetic radiation with plasmas, including microwave heating of plasmas and laser fusion. v CONTENTS An Experimental Investigation of Nonlinear Dissipation of Electromagnetic Waves in Inhomogeneous Collisionless Plasmas - G. M. Batanov and V. A. SHin. 1 Collisionless Absorption of Electromagnetic Waves in Plasmas and 'Slow' Nonlinear Phenomena - V. 1. Barinov, 1. R. Gekker, V. A. Ivanov, and D. M. Karfidov. . . . . . . . . . . . . . . . . 25 . . . . Nonlinear Effects in the Propagation of Electron Plasma Waves in an Inhomogeneous Plasma Layer - V. A. SHin . ' . . . . . 53 A Study of Secondary-Emission Microwave Discharges with Large Electron Transit Angles - L. V. Grishin, A. A. Dorofeyuk, 1. A. Kossyi, G. S. Luk'yanchikov, and M. M. Savchenko . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 . . . . 112 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The first edition of this text was written primarily by one of the present authors (HAS), with a chapter on instrumentation contributed by a second (NLA). The volume was well received, and to keep the text up-to-date a second edition…was planned. For this second edition, a third author (WEK) was invited, whose background complemented that of the other two. Each of the authors was assigned several chapters as his primary task while the complete manuscript remained the second ary responsibility of all three. It is hoped that this approach has resulted in a work that is even more thorough than the first edition in covering the basic concepts of infrared spectroscopy. NELSON L. ALPERT WILLIAM E. KEISER HERMAN A. SZYMANSKI v PREFACE TO THE FIRST EDITION My experience with the many infrared spectroscopy institutes held at Canisius College and many discussions with both beginners and experienced practitioners in infrared spectroscopy have convinced me that there is a need for an introductory text devoted entirely to infrared spectroscopy, a text which can be utilized even by those who approach this study with only a limited background. This volume sprang from that conviction. It is intended for all who wish to use infrared spec troscopy in research - especially chemists doing structural work - in routine control work, in industrial development, or in medical appli cations or those military applications where it is employed as an analytical tool. 552 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Investigation of The Nature of The Dominant Recombination Centers on The Real Surface of Germanium. Yu. F. Novototskii- Vlasov.- I. Electron Processes on the Surface of a Semiconductor.- 1. Surface States.- 2. Surface Conductivity.- 3…. Surface Recombination.- II. Investigation Methods.- 1. Field Effect Method.- 2. Measurement of the Surface Recombination Velocity.- 3. Steady-State Photoconductivity Method.- 4. Combined Measurement Method.- 5. Optical System.- 6. Measuring Circuit.- 7. Thermostatting of the Sample.- 8. Heating of the Sample by a Current.- 9. Preparation of the Sample.- 10. Vacuum and Gas Admission System.- III. Experimental Results.- 1. Heating in Vacuum. Polar Molecules.- 2. Effect of Ozone on a Freshly Etched Germanium Surface.- 3. Heating in Vacuum to 650¿K.- 4. Effect of Ozone on a ¿Dehydrated¿ Surface.- 5. Influence of Water Vapor after Heating above 500¿K.- 6. Heating at High Temperatures.- 7. Heating at High Temperatures in Oxygen and Ozone.- IV. Discussion.- 1. Analysis of Experimental Data.- 2. Nature of the Compensating Effect of Water.- 3. Nature of Recombination Centers on Real Surface of Germanium.- Conclusions.- Literature Cited.- Theory of Electromagnetic Wave Absorption in Ideal and Nonideal Ionic Crystal Lattices. V. S. Vinogradov.- I. Review of Work on the Theory of Electromagnetic Wave Absorption by Ideal and Nonideal Crystal Lattices.- 1. Classical and Quantum Theories of Infrared Absorption and Dispersion in an Ideal Ionic Crystal Lattice.- 2. Theories Which Take Account of the Influence of Charged Defects on Electro- magnetic Wave Absorption by a Crystal Lattice.- II. The Hamiltonian and the Equations of Motion. Expression of the Complex Polarizability in Terms of Retarded Green¿s Functions.- 1. The Hamiltonian for a Lattice Containing Defects. Properties of Its Coefficients.- 2. Expression for the Complex Polarizability of the Lattice in Terms of Retarded Green¿s Functions.- 3. The Phonon Creation and Annihilation Operators. The Hamiltonian and the Polarizability in Terms of These Operators. Equations of Motion for Operators.- III. The Quantum Theory of Infrared Absorption and Dispersion in an Ideal Ionic Lattice.- 1. Equations for the Retarded Green¿s Functions.- 2. Solution of the Equations for the Green¿s Functions.- 3. Discussion.- IV. Absorption of Microwaves in an Ionic Crystal Lattice Containing Charged Defects.- 1. Equations for the Retarded Green¿s Functions.- 2. Solution.of the Equations for the Green¿s Functions. Expression for the Imaginary Part of the Complex Polarizability.- 3. Calculation of the Coefficient (vi -i~y).- 4. Calculation of j (vi-yi y-vi)o q(y-vi).- 5. Expressions for the Imaginary Part of the Permittivity in the Case of Point and Linear Charged Defects.- 6. Discussion of the Results. Comparison of Theory and Experiment.- Conclusions.- Appendix A. The form of the Coefficients (yy¿¿y(n))(ii¿¿ i(n))¿ and (yy¿¿y(n))(ii¿¿ i(n))¿ for Forces between Pairs of Ions.- Appendix B. Calculation of the Polarization Vectors w (k yj)and the Frequencies (yj) for Small y in the Isotropic Case.- Appendix C. Applicability of the Born Approximation in Calculating the Scattering of Lattice Waves by Charged Defects.- Literature Cited.- Vibrational Spectra of Strontium, Barium, and Calcium Titanates. V. N. Murzin.- I. Introduction.- 1. Vibrational Spectrum of SrTiO3-Type Crystals.- 2. Features of the Vibrational Spectra of Perovskite Ferroelectrics.- II. Experimental Method.- 1. Spectrophotometer for the Far-Infrared Region.- 2. Method of Measurement in the Submillimeter and Radio Ranges.- 3. Method of Preparation of the Samples.- III. The Spectrum of Normal Modes of Vibration in Crystals of Perovskite Type.- IV. Experimental Results and Their Interpretation.- 1. Transmission and Reflection Spectra.- 2. Determination of the Spectral Variation of the Complex Permittivity. The Vibrational Spectrum of SrTiO3, BaTiO3, and CaTiO3.- 3. Dielectric Dispersion of SrTiO3, BaTiO3, and CaTiO3 Polycrystals over a Wide Frequency Range.- 4. Temperature Variation of the Vibrational Spectrum of BaTiO3.- V. Vibrational Spectra of Some Crystals Having Near-Perovskite Structure.- VI. Derivation of the Dispersion Relation and Some Microscopic Properties of BaTiO3.- Conclusions.- Appendix. Determination of the Symmetry Coefficients from the Known Transformation Matrices.- Literature Cited. 192 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This collection of notes was assembled as a supplement and guide to a five-day short course presented at the University of California at Berkeley, September 22-26, 1969. The scope of subject matter, while limited to combustion as a so…urce of air pollution, at the same time is intended to give the broadest possible exposure within that area. The spectrum is deliberately wide, ranging from fundamen tals of combustion and combustion reactions through performance of combustion systems and to legal and administrative control. Contributors to this compendium and lecturers in the subject were solicited from academic and public organizations. Most of the authors are from the statewide University of California and the California Department of Public Health. Notable individuals with particular ex pertise, from other institutions, were also invited to contribute. The choice of instructor in each case was based upon a desire to col lect a cross-section of outstanding individuals, each highly qualified technically in his field. These notes reflect the freedom which each author was encouraged to follow in providing supplementary material for his lecture. The staff of Continuing Education in Engineering, Professor Thomas Hazlett and Daphne Stern, deserve commendation for their effective and successful handling of the innumerable details which were encountered. Professors Robert Sawyer and Laurence Caretto are herewith gratefully acknowledged for their support in the seemingly uncountable tasks ne cessary to assemble the entity which is represented. 348 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A growing sophistication of the American populace about the nature and realities of the impact of the environment on prenatal development was not much in evi dence in 1983. Continuing accusations against Agent Orange and Bendectin hig…h light what must be a deep credulousness and need to blame others for one's bio logical misfortunes. We despair that ignorance and nonaccountability can be dissipated by objective means. But one can only learn and teach and hope. The need to know what causes congenital malformations becomes more imperative as they become the last major holdout, the most unyielding of all the reasons babies still die and are seriously ill. In the aggregate, congenital malfor mations are now the cause of about one-third of the deaths of infants less than one month old and one-fifth of the deaths of those under one year old, up 50% in the last two decades. In the instance of one suspected cause of congenital malformations, maternal insulin-dependent diabetes mellitus, while the perinatal mortality rate of children of such women has gone down greatly since World War II, the fraction of deaths due to congenital malformations has grown correspondingly and is now approach ing 50%. Present-day knowledge of the causes of congenital malformations is most imperfect. A recent authoritative review found that there is understanding to one extent or another of the causation of less than half of all congenital malformations. 536 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Until recently, the interpretation of data obtained in seismic exploration has been based on comparatively simple representations of the Earth. The most commonly used representation for the Earthhas been a set of thick layers, each ch…aracterized by a single value for the propa gation speed of seismic waves. During the last several years, more complicated representa tions in the form of thin layers with vertical velocity gradients, as weIl as homogeneous thin layers have been considered. New methods for studying propagation speeds in a medium, particularly ultrasonic logging methods, and the results of theoretical and experimental studies of the dynamic characteristics of seismic waves have revealed that areal Earth is considerably more complicated than the simple models accepted in the past. This has led to a need for more realistic representations of the real Earth as a medium through wh ich seismic waves propagate. Because of this, tlie Department of Seismic Exploration Methods of the Institute of Physics of the Earth of the Acad emy of Sciences of the USSR has been carrying out both experimental and theoretical studies on the topic 'Selection of Physical Representations of Actual Media and the Study of the Correspond ing Wave Propagation Effects. ' Three major subdivisions have been recognized within this over all pro gram: 1. The establishment of a direct relationship between the structure of a real medium and the basic wave-propagation characteristics. 216 pp. Englisch.
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Buch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book describes appropriate statistical models that are commonly utilized in neuropsychology. The book discusses such issues as developing normative data for neuropsychological measures, assessing the validity of neuropsychological tests…, and quantifying change 'over time' through longitudinal analyses. The rationale for and allure of the volume is the fact that there are no publications that dovetail the two subdisciplines of applied statistics and neuropsychology. The overall objective of this book is to provide a pragmatic and concrete source for applying methodological and statistical techniques in research studies whose emphasis includes neuropsychology. Since there are a plethora of technique to arrive at similar answers, each method with its strengths and weaknesses will be delineated. The beauty of the book will be that it will hopefully demystify commonly encountered issues faced with researchers. More specifically, it will provide a 'how to do it' approach. 120 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The rapid development of powerful pulsed lasers is at the origin of a conside rable interest in studying the response of an atom, a molecule (or a solid) to a strong electromagnetic field. It is now possible to produce at the laborato…ry scale, ultra-short 13 pulses with a duration of 100 femtoseconds (10- second) and a power of the order 12 of 1 terawatt (10 Watt). Under these conditions, very high peak intensities may be obtained and electric fields exceeding typical electron binding fields in atoms are generated. The interaction of an atom or a molecule with such electromagnetic fields has a highly non-linear character which leads to unexpected phenomena. Amongst them, - above-threshold ionization (ATI) i.e. the absorption of additional photons in excess of the minimal number necessary to overcome the ionization potential and its molecular counterpart, above-threshold dissociation (ATD); - generation of very high harmonics of the driving field; - stabilization of one-electron systems in strong fields. These processes were the main topics of two international meetings which were held in 1989 and 1991 in the United States under the common name SILAP (Super-Intense Laser-Atom Physics). 520 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Cryogenics is an emerging technology filled with promises. Many cryogenic systems demand the use of nonmetallics and composites for adequate or increased performance. Thermal and electrical insulations, potting for superconducting mag…nets' mechanical sta bility, and composite structures appear to be some of the most significant applications. Research on nonmetallics at cryogenic temperatures has not progressed to the degree of research on metals. Nor can room temperature research be extrapolated to low tempera tures; most polymers undergo a phase transformation to the glassy state below room temperature. Research by producers, for the most part, has not been prac tical, because, except for LNG applications, the market for large material sales is not imminent. There are, however, many government stimulated developmental programs. Research on nonmetallics thus is dictated by development project needs, which require studies orien ted toward prototype hardware and specific objectives. As a result, research continuity suffers. Under these conditions, periodic topical conferences on this subject are needed. Industry and uni versity studies must be encouraged. Designers and project research material specialists need to exchange experiences and data. Low temperature-oriented research groups, such as the National Bureau of Standards and the Institute for Technical Physics - Karlsruhe, must contribute by assisting with fundamentals, interpreting proj ect data, and contributing to project programs through their materials research. 460 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In our earlier monograph 'Mlcrohardness of Metals' [1], published in 1962, we attempted to correlate a variety of investigations scattered throughout a number of journals with the gen eral theme of solving problems of physicochemical…analysis and metallography by microhard ness measurements. The publication of 'Microhardness of Metals' promoted the widespread use of this tech nique in studying physicochemical phenomena in various materials. In recent years the micro hardness method has been used most extensively in studying semiconducting materials, and this has necessitated the revision of the monograph with the aim of incorporating new experi mental data relating to both metals and semiconductors. The greater proportion of the material presented in this book reflects the authors' own investigations. other investtgations associated with the use of the microhardness method in tOO physicochemical analysis of metallic and semiconducting systems are also taken into account. The authors are extremely indebted to Academician G. G. Urazov for his great interest in this work at its inception and for a number of valuable comments regarding the possibility of using the microhardness technique in physicochemical analysis. Sincere thanks are extended to Academician A. A. Bochvar and Professors A. N. Krestov nikov, M. M. Khrushchov, M. V. Mal'tsev, M. V. Zakharov, and I. I. Novikov for their interest in these investigations. 244 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Volumes 30 and 31 of this series, dealing with '~1any Degrees of Freedom,' contain the proceedings of the 1976 International Summer Institute of Theoretical Physics, held at the University of Bielefeld from August 23 to September 4, 1…976. This Institute was the eighth in a series of summer schools devoted to particle physics and organized by universities and research institutes in the Federal Republic of Germany. Many degrees of freedom and collective phenomena playa critical role in the description and understanding of elementary particles. The lectures in this volume were intended to show how a combination of theoretical prejudices and experimental results can lead to the crys tallization of models and theories. Topics ranged from quark, parton, and bag model~ to du~l unitarization, from cluster pictures to hadron-nucleus collisions and to astrophysical implications. The Institute took place at the Center for Inter disciplinary Research of the University of Bielefeld. On behalf of all participants, it is a pleasure to thank the officials and the administration of the Center for their cooperation and help before and during the Institute. Special thanks go to V.C. Fulland, M. Kamper, and A. Kpt tenkamp for their rapid and competent preparation of the manuscripts. 576 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Annotated Bibliography.- List of Bibliographies.- Author Index. 188 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The papers presented at the Fifth International Symposium on Heart Valves and published in this volume discuss clinical experience with heart valve replacement in pediatric patients, in adults (age 65 and younger), and in the elderly…(age 66 and older). Special considerations in heart valve replacement, such as valve selection, reoperation, results of double valve implantation, quality of life, and the use of valved conduits are also included. Finally, long term clinical follow-up with the ST. JUDE MEDICAL® heart valve, giving 7- and 8-year data is discussed. HEART VALVE REPLACEMENT IN PEDIATRIC PATIENTS Anticoagulation Anticoagulation in children is a difficult and interesting problem. Three princi pal considerations in the use of anticoagulants are patient education, timing, and anticoagulating substance. Additional considerations are patient tolerance and compliance. Generally, the findings indicate, if pediatric patients receive anticoagulation following mechanical valve replacement, it is well accepted and results in few complications. If children are not anticoagulated, complications arise. Conflicting results regarding the efficacy of PERSANTINE® and the use of aspirin vs. COUMADIN® were reported. Doctor Sade's data address some of these questions. \* After a 5-year study in \* See J Thorac Cardiovasc Surgery 1988; 95:533-561. 356 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -For centuries the 'treatment' of mentally disturbed individuals was quite simple. They were accused of collusion with evil spirits, hunted, and persecuted. The last 'witch' was killed as late as 1782 in Switzerland. Mentally disturbed… people did not fare much better even when the witchhunting days were gone. John Christian Reil gave the following description of mental pa tients at the crossroads of the fifteenth and sixteenth centuries: We incarcerate these miserable creatures as if they were criminals in abandoned jails, near to the lairs of owls in barren canyons beyond the city gates, or in damp dungeons of prisons, where never a pitying look of a humanitarian penetrates; and we let them, in chains, rot in their own excrement. Their fetters have eaten off the flesh of their bones, and their emaciated pale faces look expectantly toward the graves which will end their misery and cover up our shamefulness. (1803) The great reforms introduced by Philippe Pinel at Bicetre in 1793 augured the beginning of a new approach. Pinel ascribed the 'sick role,' and called for compas sion and help. One does not need to know much about those he wants to hurt, but one must know a lot in order to help. Pinel's reform was followed by a rapid develop ment in research of causes, symptoms, and remedies of mental disorders. There are two main prerequisites for planning a treatment strategy. 936 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It has often been said that the laser is a solution searching for a problem. The rapid development of laser technology over the past dozen years has led to the availability of reliable, industrially rated laser sources with a wide var…iety of output characteristics. This, in turn, has resulted in new laser applications as the laser becomes a familiar processing and analytical tool. The field of materials science, in particular, has become a fertile one for new laser applications. Laser annealing, alloying, cladding, and heat treating were all but unknown 10 years ago. Today, each is a separate, dynamic field of research activity with many of the early laboratory experiments resulting in the development of new industrial processing techniques using laser technology. Ten years ago, chemical processing was in its infancy awaiting, primarily, the development of reliable tunable laser sources. Now, with tunability over the entire spectrum from the vacuum ultraviolet to the far infrared, photo chemistry is undergoing revolutionary changes with several proven and many promising commercial laser processing operations as the result. The ability of laser sources to project a probing beam of light into remote or hostile environments has led to the development of a wide variety of new analytical techniques in environmental and laboratory analysis. Many of these are reviewed in this book. 480 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Radiation Emitted from Semiconductor Lasers in Strong Magnetic Fields and under High Hydrostatic Pressures.- I Influence of Magnetic Fields and High Pressures on Energy Spectra of Semiconductors.- ¿1. Influence of Magnetic Fields on E…nergy Structure of III¿V and IV¿VI Semiconductor Compounds.- ¿2. Influence of Pressure on Energy Structures of III¿V and IV¿VI Compounds.- ¿3. Characteristics of Semiconductor Laser Operation Affected by Variation of Temperature, Pressure, and Magnetic Field.- II Experimental Method.- ¿1. Apparatus for Excitation of Injection Lasers and Recording of Emission Spectra.- ¿2. Q-Switched CO2 Laser.- ¿3. Technique Used in Low-Tempe rature Magnetooptic Investigations at Infrared Wavelengths.- ¿4. Apparatus Used in Optical Measurements at Infrared Wavelengths under High Hydrostatic Pressures at 77¿K.- ¿5. Zinc- and Copper-Doped Germanium Infrared-Radiation Detectors.- ¿6. Scanning of Infrared Radiation Emitted from InSb Crystals.- ¿7. Other Measurements.- III Influence of Magnetic Fields on Emission Spectra of p-n Junctions in InAs, InSb, and PbSe.- ¿1. Spontaneous and Coherent Radiation Emitted from InAs Injection Lasers.- ¿2. Radiation Emitted from InSb Injection Lasers in Strong Magnetic Fields. Position of Light-Emission Region.- ¿3. Spontaneous and Coherent Radiation Emitted from p-n Junctions in PbSe.- IV Magnetically Tuned Stimulated Raman Emission from Indium Antimonide.- ¿1. Raman Scattering of Light by Plasmons and Landau Levels in Semiconductors.- ¿2. Stimulated Raman Scattering of Light Accompanied by Spin Flip in Indium Antimonide.- ¿3. Discussion of Results.- V Influence of Pressure on Radiation Emitted from Lead Selenide and Gallium Arsenide Semiconductor Lasers.- ¿1. Emission Spectra of PbSe Lasers.- ¿2. Emission Spectra of GaAs Lasers.- ¿3. Discussion of Results.- Conclusions.- Literature Cited.- Investigation of the Collective Properties of Excitons in Germanium by Long-Wavelength Infrared Spectroscopy Methods.- I Energy Spectra and Collective Properties of Excitons in Semiconductors.- 1. Energy Spectrum of Excitons.- ¿1. Theoretical Calculations.- ¿2. Experimental Results.- 2. Collective Properties of Exciton Systems.- ¿1. Theoretical Representations.- ¿2. Discussion of Experimental Results.- II Methods used in Far-Infrared Investigations of Excitons in Semiconductors.- ¿1. Spectroscopic Measurements.- ¿2. Apparatus Used in Low-Tempe rature Optical Measurements under Interband Excitation Conditions.- ¿3. Sources of Exciting Radiation.- ¿4. Thermal Conditions.- III Far-Infrared Resonance Absorption in Condensed Exciton Phase in Germanium.- ¿1. Absorption Spectra of Intrinsic Germanium.- ¿2. Discussion of Parameters of Electron ¿Hole Drops (n0 and ).- ¿3. Temperature Dependence of Resonance Absorption.- ¿4. Dependence of Resonance Absorption on Excitation Rate.- ¿5. Resonance Absorption in Doped Germanium.- IV Resonance Luminescence of Condensed Exciton Phase in Germanium.- ¿1. Experimental Investigation of Resonance Luminescence.- ¿2. Discussion of Experimental Results. Effective Luminescence Temperature of Drops.- ¿3. Influence of Inhomogeneous Deformation on Resonance Absorption and Luminescence. Mobility of Electron-Hole Drops.- V Photoionization and Excitation of Free Excitons in Germanium by Submillimeter Radiation.- ¿1. Photoionization and Excitation Spectra.- ¿2. Discussion of Experimental Results. Energy Levels of Excitons.- Literature Cited.- Collective Interactions of Excitons and Nonequilibrium Carriers in Gallium Arsenide and Silicon.- I Collective Interactions of Excitons in Semiconductors.- II Measurement Method.- ¿1. Optical System and Method of Recording Luminescence during Continuous Optical Excitation.- ¿2. Optical System and Method of Recording Luminescence Due to High-Power Light Pulses.- ¿3. Temperature Measurement Method.- ¿4. Determination of Temperature Rise in a Semiconductor during Continuous Optical Excitation.- ¿5. Determination of Temperature Rise in a Semiconductor during Illumination with High-Power Light Pulses.- III Photoluminescence of Gallium Arsenide.- ¿1. Excitons in GaAs and Their Role in Radiative Recombination.- ¿2. Investigation of Luminescence Spectra of GaAs at Different Optical Excitation Rates and Helium Temperatures.- ¿3. Photoluminescence of GaAs at Temperatures 2¿100¿K. Investigation of Temperature Dependence of Recombination Radiation Intensity.- ¿4. Photoluminescence Spectra of GaAs at T = 77¿K.- ¿5. Discussion of Results.- ¿6. Supplement. Possibility of Existence of Condensate in Pure Epitaxial GaAs Films.- IV Change in Absorption Coefficient of Undoped GaAs Due to Strong Optical Excitation.- V Investigation of Photoluminescence Spectra of Silicon at Different Optical Excitation Rates.- ¿1. Review of Literature.- ¿2. Experimental Investigation of the Photoluminescence of Si at Different Optical Excitation Rates.- ¿3. Photoluminescence Spectra of Si at Different Temperatures. Investigation of the Temperature Dependence of the Luminescence Intensity.- ¿4. Determination of the Binding Energy of Free Excitons from the Fall of the Luminescence Intensity with Rising Temperature.- ¿5. Discussion of Experimental Results.- VI Photoelectric Properties of Silicon at High Optical Excitation Rates.- ¿1. Review of Literature.- ¿2. Measurement Method.- ¿3. Photoluminescence Spectra of Si in the Presence of Static Electric Fields. Impact Ionization of Free Excitons.- ¿4. Kinetics of Recombination Processes in Si.- ¿5. Investigation of Excitons at High Concentrations in Weak Electric Fields.- Literature Cited. 192 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This Advanced Study Institute (ASI) brought together two distinct 'schools of approach' to Quantum Electrodynamics (QED) in the presence of intense, external, electromagnetic fields, in an effort to lay a joint foundation for a needed… theoretical explanation of the sharp e+ e- 'resonances' observed in the scattering of very heavy IOns. These (GSI/Darmstadt) experiments, whose history, latest reconfirmations, and most recent data were presented in three opening sessions (Bokemeyer, Koenig), show a smooth background of positron (e+) production, as a function of e+ kinetic energy. Superimposed upon this background are four very sharp peaks, of narrow widths (~ 30 KeV) and of clear experimental significance ('' 5 standard deviations). Most ofthese peaks correspond to sharp, essentially back-to-back electron-positron emission in the ions' center of mass. Following the approach of 'supercritical' potential theory (SPT), where the total ionic charge unit Z satisfies Z 137, it has been possible to provide a detailed and apparently correct understanding of the smooth e+ e- background; a coherent description of different facets of this approach, emphasizing the nature of the charged, supercritical vacuum, was described by the authors responsible for the invention of SPT (Greiner, Muller, Rafelski). In addition, predictions for related phenomena were outlined by other lecturers using the SPT approach (Bawin, Soff, SsJrensen). 456 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the lectures and seminars on Coronas, Gas Discharges, Diagnostics, Plasma Chemistry, and Applications pre sented at the Advanced Study Institute on Breakdown and Discharges in Gases. The Institute was held in Les…Arcs, France, during June 28 to July 10, 1981. The first volume has been devoted to the areas of Basic Discharge Processes, Kinetic Theory and Gas Break down. This collection is both tutorial and representative of the state of the field. We hope it will be useful both to beginners and experienced researchers. We are grateful to a number of organizations for providing financial assistance. The Scientific Affiars Division of NATO provided the major contribution for the Institute. The Office of Naval Research, the Naval Surface Weapons Center at Dahlgren, the Air Force Office of Scientific Research and the Air Force Weapons Laboratory provided additional support. The National Science Foun dation financed the travel of one student. We would like to acknowledge the many people who helped us organize and carry the Institute to its successful completion. 480 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Army Materials and Mechanics Research Center has conducted the Sagamore Army Materials Research Conferences, in cooperation with the Metallurgical Research Laboratories of the Department of Chemical Engineering and Metallurgy of S…yracuse University, since 1954. The purpose of the conferences has been to gather together scientists and engineers from academic institutions, industry, and government who are uniquely qualified to explore in depth a subject of importance to the Army, the Department of Defense and the scientific corr.munity. This volume, Surfaces and Interfaces ll: Physical and Mechanical Properties, can be considered a continuation, or perhaps an extension, of the information contained in Surfaces and Interfaces I: Chemical and Physical Characteristics. The emphasis in this volume is focused on: the technological significance of surfaces and interfaces; surface sensitive mechanical properties; environment-sensitive properties; control of grain structure; and composite materials. It is felt that the rather ambitious undertaking of the program committee to place the role of 'surfaces and interfaces' in its proper context has been achieved. The balance between basic research findings and more applied research allows the reader a certain degree of latitude in the use of the two volumes. The continued active interest and support of these conferences by Col. C. T. Riordan, Commanding Officer, Dr. E. Scala, Technical Di rector, and J. F. Sullivan, Deputy Technical Director, of the Army Materials and Mechanics Research Center is appreciated. 512 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The 38th Annual Denver Conference on Applications of X-Ray Analysis was held July 31 - August 4, 1989, at the Sheraton Denver Technical Center, Denver, Colorado. The conference alternates emphasis between x-ray diffraction and x-ray f…luorescence, and this being an odd year the emphasis was on diffraction. Thus the Plenary Session was slanted toward diffraction in general and thin film analysis in particular. The Plenary Session on x-ray analysis of thin films did not just happen this year but really began four years ago with Paul Predecki suggesting a special session devoted to thin film techniques. The session generated a great deal of interest, so Paul suggested that a workshop on thin films should be slated for the 1987 conference. A full day was devoted to the workshop, which was split into a half day on epitaxial thin films and the other half day on polycrystalline thin films. The workshop attendance indicated a great deal of interest in this topic, leading to this year's Plenary Session. The first two speakers of the Plenary Session (B. Tanner and K. Bowen) have been key throughout the thin film activities. They were invited speakers for the 1985 special session on thin films and instructors for the 1987 workshop on epitaxial thin films. 728 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The workshop on 'The structure of small molecules and ions' was held at the Neve-Han guest house, near Jerusalem, Israel on December 13 to 18 in mem ory of the late Professor Itzhak Plesser. Professor Plesser played a central role in…the research done both at the Weizmann Institute and at Argonne National Laboratories on the 'Coulomb explosion' method. His friends honored his memory by organizing a meeting in which subjects related to Plesser's interests would be discussed. Just a week be fore the conference started we were struck by another tragedy -the death of our graduate student Ms. Hana Kovner, who participated in many of the Coulomb explosion experiments at the Weizmann Institute. We would like to dedicate these proceedings to her memory as well. The goal of the workshop was to bring together chemists and physicists working on different aspects of the structural problems of small molecular en tities. The time seemed appropriate for discussing experimental and theoretical concepts, since in recent years new methods have been introduced, and a large amount of information has been accumulated on systems not studied before, like unstable molecules, ions, van der Waals molecules and clusters. The program of the workshop reflects, we believe, these new developments. The meeting was characterized by intensive discussions in which the weak nesses and strengths of new and of well established concepts were revealed. We hope that it measured up to the high standards Itzhak Plesser maintained all through his scientific life. 364 pp. Englisch.
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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The biological significance of carbohydrates in glycosyl ated biopolymers emerged from studies on viruses, microbial cells and animal tissues. Plant-related processes, a rela tive newcomer to this area of research, now offer chal leng…ing questions as regards the roles of glycosyl-con jugates and carbohydrate-binding proteins in such broadly based topics as pollination, fertilization, symbiosis (including nitrogen fixation), the chemical basis of morphogenesis, and the broad area of plant protection. While the impressive accomplishments on model systems, membrane-bound processes, receptor site biochemistry, and cell surface interactions fill numerous reports, reviews, and books, most of these involve biological systems other than plants. A real need exists for the present volume in which cell recognition and cell surface interactions as related to plants are examined. Contributions to this volume may be sorted into three catagories: first an overview of the structures and pro perties of glycoconjugates, then a closer look at specific systems in terms of biological function, and finally, selected examples of cell recognition and cell surface interactions as encountered in biology. To introduce the general subject, Alan Elbein reviews the structure and bio synthesis of certain glycoconjugates and examines the bio chemical basis of adherence between bacteria and eucaryotic cells. Irwin Goldstein examines the properties of plant derived lectins, in particular a group of lectins from Bandeiraea simplicifolia. The roles of several biologi cally-active complex carbohydrates in plant-related host pest relationships are examined by Peter Albersheim and his colleagues. 292 pp. Englisch.
